Das Shashiprabha. (2004). Pappu's Problem. National Book Trust.
Lua i Stíl Chicago (17ú heag.)Das Shashiprabha. Pappu's Problem. New Delhi: National Book Trust, 2004.
Lua MLA (9ú heag.)Das Shashiprabha. Pappu's Problem. National Book Trust, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.